JPS63245390A - Method of cutting hollow plastic molded form - Google Patents
Method of cutting hollow plastic molded formInfo
- Publication number
- JPS63245390A JPS63245390A JP32762287A JP32762287A JPS63245390A JP S63245390 A JPS63245390 A JP S63245390A JP 32762287 A JP32762287 A JP 32762287A JP 32762287 A JP32762287 A JP 32762287A JP S63245390 A JPS63245390 A JP S63245390A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- rotary cutter
- cutting
- plastic molded
- hollow plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 19
- 229920003023 plastic Polymers 0.000 title claims description 17
- 239000000843 powder Substances 0.000 description 7
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Nonmetal Cutting Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、中空のプラスチック成形品、例えば、自動
車等で使用されるダクト等を切断する方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for cutting hollow plastic molded products, such as ducts used in automobiles and the like.
〈従来の技術〉
従来、この種の中空のプラスチック成形品の切断は、カ
ッターやハンドソー等を用いて人手により切り取ったり
、丸鋸盤等の機械により切り取ったりしていた。<Prior Art> Conventionally, this type of hollow plastic molded product has been cut manually using a cutter, a hand saw, or the like, or by a machine such as a circular saw.
〈発明が解決しようとする問題点〉
しかしながら、カッターにより切断する場合、工数がか
かるとともに、切断面が揃いにくく切断後切断面に対し
て仕上げ加工が必要な場合もあり、一層工数がかかるこ
ととなっていた。<Problems to be solved by the invention> However, when cutting with a cutter, it takes a lot of man-hours, and the cut surfaces are difficult to line up and may require finishing processing after cutting, which further increases the man-hours. It had become.
また、ハンドソーや丸鋸盤により切断する場合は、カッ
ターで切断するよりも工数は削減されるが、切断時に切
削粉末が飛び敗ることとなっていた。そして、切削粉末
が静電気等によりプラスチック成形品に付着するため、
切断後切削粉末を取り除かなければならず、工数がかか
つていた。特に、プラスチック成形品の内側凹部に入り
込んだ切削粉末は簡単に取り除くことができず、より工
数がか′かることとなっていた。Further, when cutting with a hand saw or a circular saw, the number of man-hours is reduced compared to cutting with a cutter, but cutting powder is thrown away during cutting. Then, cutting powder adheres to the plastic molded product due to static electricity, etc.
Cutting powder had to be removed after cutting, which was time consuming. In particular, cutting powder that has entered the inner recess of the plastic molded product cannot be easily removed, resulting in more man-hours.
この発明は、既述の問題を解決するもので、切断面を均
一にぎれいに切断できるとともに切断時に切削粉末が飛
び敗ることのない中空プラスチック成形品の切断方法を
提供することを目的とする〈問題点を解決するための手
段〉
この発明に係る中空のプラスチック成形品の切断方法は
、
中空のプラスチック成形品である被加工体を、移動ベー
ス上に固定する工程、
移動ベース近傍に配設され周縁に連続して刃部か形成さ
れる円盤状の回転カッターを回転するとともに、移動ベ
ースを回転カッターに近接するように移動し被加工体に
回転カッターを食い込ませ゛ る工程、
回転カッターを回転カッターの回転方向と逆方向へ被加
工体の周縁を１回転するように円運動させる工程、
を経て切断することにより、既述の問題点を解決するも
のである。This invention solves the above-mentioned problems, and aims to provide a method for cutting a hollow plastic molded product that can cut the cut surface uniformly and neatly and prevent cutting powder from flying away during cutting. <Means for Solving the Problems> The method for cutting a hollow plastic molded product according to the present invention includes the steps of: fixing a workpiece, which is a hollow plastic molded product, on a movable base; and disposing the workpiece in the vicinity of the movable base. The process of rotating a disc-shaped rotary cutter with a continuous cutting edge formed on the periphery of the rotary cutter and moving the movable base close to the rotary cutter to cause the rotary cutter to bite into the workpiece; rotating the rotary cutter The above-mentioned problems are solved by cutting through the steps of circularly moving the circumferential edge of the workpiece in one rotation in the opposite direction to the rotational direction of the cutter.
〈実施例〉
以下、本発明の一実施例を図面に基づいて説明する。な
お、ここでは中空のプラスチック成形品である被加工体
として、自動車等で使用されるダクトを例に採り説明す
るが、これに限られるものでなく、例えばホース等にも
適用できる。<Example> An example of the present invention will be described below based on the drawings. In this case, a duct used in an automobile or the like will be used as an example of the workpiece, which is a hollow plastic molded product, but the present invention is not limited to this, and can also be applied to, for example, a hose.
第１工程
ＰＰ、ＰＶＣ，ＡＢＳ樹脂等のプラスチックから、吹込
成形等により、袋状端末６ａを有して形成された被加工
体（ダクト）６を、固定クランプ４及び可動クランプ５
により、移動ベース１上に固定する。このとき、切断部
位である袋状端末６ａは、移動ベース１から外方へ突出
して固定される。First step: A workpiece (duct) 6 formed from plastic such as PP, PVC, or ABS resin by blow molding or the like and having a bag-shaped end 6a is fixed to a fixed clamp 4 and a movable clamp 5.
to fix it on the movable base 1. At this time, the bag-like terminal 6a, which is the cutting part, protrudes outward from the movable base 1 and is fixed.
なお、移動ベース１は、軸受３を介してスライド軸２上
を摺動可能に配設されている。また、固定クランプ４と
可動クランプ５とは、ヒンジ１１により連結されており
、可動クランプ５は、ヒンジ軸２０を介して図示しない
駆動手段により、ヒンジ部位を中心として第３図に一点
鎖線で示したように、回動可能となっている。Note that the movable base 1 is arranged to be slidable on a slide shaft 2 via a bearing 3. Further, the fixed clamp 4 and the movable clamp 5 are connected by a hinge 11, and the movable clamp 5 is driven by a drive means (not shown) via a hinge shaft 20, and the movable clamp 5 is driven by a drive means (not shown) through a hinge shaft 20, as shown by a dashed line in FIG. As shown, it can be rotated.
第２工程
移動ベース１近傍に配設された回転カッター１０を回転
するとともに、図示しないシリンダ等の駆動手段により
移動ベース１を回転カッター１０方向へ摺動し、被加工
体６の一部に回転カッター１０を食い込ませる。The rotary cutter 10 disposed near the second process movable base 1 is rotated, and the movable base 1 is slid in the direction of the rotary cutter 10 by a driving means such as a cylinder (not shown), and rotated to a part of the workpiece 6. Insert cutter 10.
なお、回転カッター１０と被加工体６とが当接する際の
被加工体６の変形をできるだけ少なくするため、回転カ
ッター１０は固定・可動クランプ４・５にできるだけ近
いほうが良い。Note that, in order to minimize deformation of the workpiece 6 when the rotary cutter 10 and workpiece 6 come into contact with each other, it is preferable that the rotary cutter 10 be as close as possible to the fixed/movable clamps 4 and 5.
回転カッター１０は、ＳＫＨ，ＳＫＳ等の工具鋼製で、
周縁に連続して刃部ＩＱａが形成されている。この刃部
１０ａは、断面Ｖ字形、すなわち両刃となっている。The rotary cutter 10 is made of tool steel such as SKH or SKS.
A blade portion IQa is formed continuously on the periphery. This blade portion 10a has a V-shaped cross section, that is, a double-edged blade.
また、回転カッター１０は、被加工体６の軸心方向に延
びるアーム回転軸７、該アーム回転軸す先端から垂直方
向に配設されるアーム８及び軸受１６を介してアーム８
先端にアーム回転軸と平行に配設される支持軸９からな
る回転カッター回動機構の支持軸９先端に、被加工体６
の軸心に対して直交するように配設されている。回転カ
ッター１０は、頭部が回転カッター１０の側面から突出
しないように、平ビス等のねじ部材２３により取り外し
可能に支持軸９に固定されている。The rotary cutter 10 also includes an arm rotation shaft 7 extending in the axial direction of the workpiece 6, an arm 8 disposed vertically from the tip of the arm rotation shaft, and an arm 8 via a bearing 16.
A workpiece 6 is attached to the tip of the support shaft 9 of the rotary cutter rotation mechanism, which includes a support shaft 9 disposed at the tip parallel to the arm rotation axis.
is arranged perpendicular to the axis of the The rotary cutter 10 is removably fixed to the support shaft 9 with a screw member 23 such as a flat screw so that the head does not protrude from the side surface of the rotary cutter 10.
そして、回転カッター１０は、図示しないモータ等の駆
動手段により、アーム回転軸７を中心として、被加工体
６のまわりを円運動可能である。The rotary cutter 10 is capable of circular movement around the workpiece 6 with the arm rotation axis 7 as the center by a drive means such as a motor (not shown).
なお、１９は図示しない駆動手段の回転を伝達する歯車
である。Note that 19 is a gear that transmits the rotation of a drive means (not shown).
また、回転カッタ−１０自体の回転は、アーム回転軸７
に軸受１８．軸受板１７等を介して支持されるモータ２
１により、プーリ１２．１４．２２及びベルト１３．１
５を介して得られる。Further, the rotation of the rotary cutter 10 itself is controlled by the arm rotation shaft 7.
Bearing 18. Motor 2 supported via bearing plate 17 etc.
1, pulley 12.14.22 and belt 13.1
5.
第３工程
回転カッター１０を被加工体６に食い込ませた状態で回
転カッタ−１０自体を回転させながら、アーム回転ｌ１
１１７を回転カッタ−１０自体の回転と逆方向へ回転し
、アーム回転軸７を中心として回転カッター１０を被加
工体６周縁に沿って円運動させる。Third step While rotating the rotary cutter 10 itself with the rotary cutter 10 biting into the workpiece 6, the arm rotates l1.
The rotary cutter 117 is rotated in a direction opposite to the rotation of the rotary cutter 10 itself, and the rotary cutter 10 is moved circularly along the circumference of the workpiece 6 with the arm rotation axis 7 as the center.
そして、回転カッター１０が１回転すると、被加工体６
の袋状端末６ａが切り取られることとなる。When the rotary cutter 10 rotates once, the workpiece 6
The bag-shaped end 6a of the bag-shaped end 6a is cut off.
このとき、回転カッター１０を、それ自体の回転と逆方
向へ回転させることにより、被加工体６の切断部位が半
径方向外方へ広がろうとするため、ダクト等の比較的や
わらかいプラスチック成形品でも、切断面を均一として
きれいに切断することができる。At this time, by rotating the rotary cutter 10 in the opposite direction to its own rotation, the cut portion of the workpiece 6 tends to spread outward in the radial direction, so even relatively soft plastic molded products such as ducts , the cut surface can be made uniform and cleanly cut.
また、回転カッター１０の刃部１０ａは、周縁に連続し
て形成されており、被加工体６の切断にあたり、従来の
丸鋸のように切断部位を切削しないので、切削粉末が出
るようなことはない。Further, the blade part 10a of the rotary cutter 10 is formed continuously on the periphery, and when cutting the workpiece 6, unlike a conventional circular saw, the cutting part is not cut, so cutting powder is not generated. There isn't.
回転カッター１０の回転速度及び円運動の速度は、被加
工体６の硬さや厚み等により適宜選択されるものである
が、例えば、厚さが １．２ｍｍで手により弾性変形可
能な程度の硬さのダクトの場合、回転カッター１０の回
転速度を６０回転／分１円運動の速度を１２回転／分と
した場合、切断面を均一としてきれいに切断することか
でざる。The rotational speed and circular motion speed of the rotary cutter 10 are appropriately selected depending on the hardness and thickness of the workpiece 6, but for example, a cutter with a thickness of 1.2 mm and a hardness that can be elastically deformed by hand is selected. In the case of a small duct, if the rotating speed of the rotary cutter 10 is 60 revolutions/minute and the speed of one circular motion is 12 revolutions/minute, it is necessary to cut the cut surface uniformly and cleanly.
そして、上述の如く、被加工体６の袋状端部６ａを切断
した後は、回転カッタ−１０自体の回転を停止し、移動
ベース１を元の位置に戻して可動クランプ５を開けて、
被加工体６を取り出して終了する。As described above, after cutting the bag-shaped end 6a of the workpiece 6, the rotation of the rotary cutter 10 itself is stopped, the movable base 1 is returned to its original position, and the movable clamp 5 is opened.
The workpiece 6 is taken out and the process ends.
なお、上述の実施例においては、被加工体６の一方の袋
状端部６ａを切断する方法を示したが、被加工体６や第
４図に示した被加工物２６のように両端部に切断の必要
な袋状端部６ａ・２６ａがある場合は、移動ベース１の
両側に回転カッターを配設すれば、一度の工程で両方を
切断することができる。In the above-described embodiment, a method was shown in which one bag-shaped end 6a of the workpiece 6 was cut. If there are bag-like ends 6a and 26a that need to be cut, by disposing rotary cutters on both sides of the movable base 1, both can be cut in one process.
また、上述の実施例では、被加工体６を半径方向に切断
する方法を示したが、それに限られず、アーム回転軸７
を被加工体６の軸心方向に対して少し傾けた状態に配設
すれば、被加工体６を傾めに切断することもできる。Further, in the above-described embodiment, a method of cutting the workpiece 6 in the radial direction is shown, but the method is not limited to this, and the arm rotation shaft 7
By arranging the cutter at a slight angle with respect to the axial direction of the workpiece 6, the workpiece 6 can be cut at an angle.
さらに、被加工体としては、切断部位が断面円形のもの
に限られず、断面多角形や断面楕円形のものでも切断す
ることができ、また、被加工体の径が小さい場合は、回
転カッターの径を大きくして対処することができる。Furthermore, the workpiece to be cut is not limited to one with a circular cross section, but can also be cut with a polygonal or elliptical cross section, and if the diameter of the workpiece is small, a rotary cutter can be used. This can be dealt with by increasing the diameter.
〈発明の効果〉
この発明に係る中空のプラスチック成形品の切断方法は
、中空のプラスチック成形品である被加工体を移動ベー
ス上に固定する工程と、移動ベース近傍に配設され周縁
に連続して刃部が形成される円盤状の回転カッターを回
転するとともに、移動ベースを回転カッターに近接する
ように穆動し被加工体に回転カッターを食い込ませる工
程と、回転カッターを回転カッターの回転方向と逆方向
へ被加工体の周縁を１回転するように円運動させる工程
、からなっている。<Effects of the Invention> The method for cutting a hollow plastic molded product according to the present invention includes a step of fixing a workpiece, which is a hollow plastic molded product, on a moving base, and a step of fixing a workpiece, which is a hollow plastic molded product, on a moving base, and a step of fixing a workpiece, which is a hollow plastic molded product, on a moving base, and The process of rotating the disc-shaped rotary cutter in which the blade is formed, and moving the movable base close to the rotary cutter to cause the rotary cutter to bite into the workpiece, and the process of rotating the rotary cutter in the direction of rotation of the rotary cutter. The process consists of circularly moving the circumferential edge of the workpiece in the opposite direction so as to make one rotation.
そして、回転カッターを被加工体に食い込ませた状態か
ら、被加工体の周縁に沿って１回転すると、被加工体が
切断されることとなる。Then, when the rotary cutter is rotated once along the circumference of the workpiece from the state where it has bitten into the workpiece, the workpiece will be cut.
このとき、回転カッターは、それ自体の回転方向とは逆
方向へ円運動されるため、被加工体の切断部位が半径方
向外方へ押されるようにして切断される。At this time, the rotary cutter is moved circularly in a direction opposite to its own rotational direction, so that the cut portion of the workpiece is pushed radially outward.
したがって、切断面を均一にきれいに切断することがで
きる。Therefore, the cut surface can be cut uniformly and neatly.
また、回転カッターの刃部は、周縁に連続して形成され
ており、被加工体の切断にあたり、従来の丸鋸のように
切断部位を切削しないので、切削粉末が出ることを防止
することができる。In addition, the blade of the rotary cutter is formed continuously on the periphery, and when cutting the workpiece, unlike a conventional circular saw, the cutting part is not cut, so it is possible to prevent cutting powder from coming out. can.
第１〜３図はこの発明の切断方法の一実施例を示すもの
であり、第１図は被加工体をクランプした状態を示す斜
視図、第２図は回転カッターを被加工体に食い込ませた
状態を示す側面図、第３図は第２図Ａ−Ａ断面矢視図、
第４図はこの発明の切断方法を適用可能な他の被加工体
を示す斜視図である。
１・・・移動ベース、
６．２６・・・被加工体、
１０・・・回転カッター。
第２図
第４Ｃ（ＩFigures 1 to 3 show an embodiment of the cutting method of the present invention, with Figure 1 being a perspective view showing the workpiece being clamped, and Figure 2 being a perspective view showing the state in which the rotary cutter is biting into the workpiece. FIG. 3 is a cross-sectional view taken along line A-A in FIG.
FIG. 4 is a perspective view showing another workpiece to which the cutting method of the present invention can be applied. 1... Moving base, 6.26... Workpiece, 10... Rotating cutter. Figure 2 4C (I
Claims (1)
ス上に固定する工程と、 前記移動ベース近傍に配設され周縁に連続して刃部が形
成される円盤状の回転カッターを回転するとともに、前
記移動ベースを前記回転カッターに近接するように移動
し前記被加工体に前記回転カッターを食い込ませる工程
と、 前記回転カッターを該回転カッターの回転方向と逆方向
へ前記被加工体の周縁を１回転するように円運動させる
工程 からなる中空のプラスチック成形品の切断方法。[Claims] A process of fixing a workpiece, which is a hollow plastic molded product, on a movable base; and a rotating disc-shaped disc disposed near the movable base and having a continuous cutting edge on its periphery. rotating the cutter and moving the movable base close to the rotary cutter to cause the rotary cutter to bite into the workpiece; and moving the rotary cutter in the opposite direction to the rotational direction of the rotary cutter. A method for cutting hollow plastic molded products, which involves circularly moving the periphery of the workpiece in one rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32762287A JPS63245390A (en) | 1987-12-24 | 1987-12-24 | Method of cutting hollow plastic molded form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32762287A JPS63245390A (en) | 1987-12-24 | 1987-12-24 | Method of cutting hollow plastic molded form |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63245390A true JPS63245390A (en) | 1988-10-12 |
| JPH0543469B2 JPH0543469B2 (en) | 1993-07-01 |
Family
ID=18201107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32762287A Granted JPS63245390A (en) | 1987-12-24 | 1987-12-24 | Method of cutting hollow plastic molded form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63245390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021053780A (en) * | 2019-10-01 | 2021-04-08 | 株式会社イノアックコーポレーション | Manufacturing apparatus and manufacturing method of tubular body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55138014U (en) * | 1979-03-20 | 1980-10-01 | ||
| JPS6017998U (en) * | 1984-06-22 | 1985-02-06 | シーシーアイ株式会社 | pipe cutting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017998B2 (en) * | 1981-09-24 | 1985-05-08 | 千代田化工建設株式会社 | Optimized control method for heat recovery system |
-
1987
- 1987-12-24 JP JP32762287A patent/JPS63245390A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55138014U (en) * | 1979-03-20 | 1980-10-01 | ||
| JPS6017998U (en) * | 1984-06-22 | 1985-02-06 | シーシーアイ株式会社 | pipe cutting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021053780A (en) * | 2019-10-01 | 2021-04-08 | 株式会社イノアックコーポレーション | Manufacturing apparatus and manufacturing method of tubular body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0543469B2 (en) | 1993-07-01 |
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